Hey! Great to hear from you! Sounds like you've thought this out. If you believe in the projects, then go for it. I've got a slightly different strategy this time around than in 2017. I think most of the alts will die off, with maybe a couple doze surviving. I think BTC will be the least risky thing to accumulate in the coming years as who knows what projects will be left standing in the end. I also thing BTC will be much more profitable than many think. I doubt we'll have the kind of alt season we did in 2017. I do invest in a handful of alts, but the majority is in BTC as that's where the coming institutional money will likely go.
STEEM is a good project, but a risky one IMO with all the competition out there now. Still, I agree it's growing number of Dapps is a good sign.
This market is insane. Very similar to the dot.com boom. We all know there's a TON of money to be made, but no one knows exactly which coins will make it. The projects that look great now may not be around in a few years. Guess time will tell. Wishing you all the best my friend!